Home / 149,711.40-206,601.30-82,643.40

Finding the Fourth Proportional to 149,711.40, 206,601.30 and 82,643.40

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Solution

The fourth proportional to 149,711.40, 206,601.30 and 82,643.40 is: 114,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,711.40 : 206,601.30 = 82,643.40 : x
  2. Step 2: Convert to fraction form
    149,711.40/206,601.30 = 82,643.40/x
  3. Step 3: Cross multiply
    149,711.40x = 206,601.30 × 82,643.40
  4. Step 4: Simplify right side
    149,711.40x = 17,074,233,876.42
  5. Step 5: Solve for x
    x = 17,074,233,876.42/149,711.40
  6. Step 6: Final answer
    x = 114,047.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.